Kickstarter mechanism for 250h/500 wanted

[Norton]

Good evening,
I am in the process of rebuilding a 250h engine (to fit to a 125kj) but I realized the starter mechanism I bought for it doesn't fit as there must be a difference between the 350 and the 250/500 dimensions/teeth.
If anyone has one spare that I could buy or swap for the 350 one that would be great.
Many thanks,
Norton

[simonnorthroad]

Yes it's down the different Primary gearing